Why do some pages have advertisments provided by Google?
These not only provide an extra source of funding for the project (if you click on them they generate a small advertising commission which is used to maintain the project), but they provide contextual links to related sites and services. This project was only made possible because of the sudden interest in Pixel Advertising. This has resulted in a mass of pixel sites, software and services. By viewing the contextual adverts visitors can begin to follow this massive explosion in revenue generating ideas – or thay can choose not to click on them at all.
